Added ability to log a specific tree trait using a different tag. XML looks like this (will log the second branch rates as 'trait.rate' whereas the first one will use its default 'rate'):
Added ability to log a specific tree trait using a different tag. XML looks like this (will log the second branch rates as 'trait.rate' whereas the first one will use its default 'rate'):

		<logTree id="treeFileLog" logEvery="1000" nexusFormat="true" fileName="untitled.trees" sortTranslationTable="true">
			<treeModel idref="treeModel"/>
			<posterior idref="posterior"/>

			<branchRates idref="branchRates"/>
			<trait name="rate" tag="trait.rate">
				<branchRates idref="trait.diffusionRates"/>
			</trait>
		</logTree>


git-svn-id: 67bc77c75b8364e4e9cdff0eb6560f5818674cd8@4431 ca793f91-a31e-0410-b540-2769d408b6a1

armanbilge/BEAST_sandbox,armanbilge/BEAST_sandbox,svn2github/beast-mcmc,svn2github/beast-mcmc,svn2github/beast-mcmc,armanbilge/BEAST_sandbox,svn2github/beast-mcmc,armanbilge/BEAST_sandbox,svn2github/beast-mcmc,armanbilge/BEAST_sandbox